CN215967078U - Swing mechanism and automatic welding machine - Google Patents
Swing mechanism and automatic welding machine Download PDFInfo
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- CN215967078U CN215967078U CN202122662911.9U CN202122662911U CN215967078U CN 215967078 U CN215967078 U CN 215967078U CN 202122662911 U CN202122662911 U CN 202122662911U CN 215967078 U CN215967078 U CN 215967078U
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- guide rail
- swing mechanism
- swing
- frame body
- displacement sensor
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Abstract
A swing mechanism comprises a swing device, a welding head assembly and a displacement sensor, wherein the swing device comprises a first frame body and a first guide rail, and the first frame body is movable relative to the first guide rail; the welding head assembly is arranged on the first frame body; the displacement sensor comprises a fixed part and a movable part, one of the fixed part and the movable part is connected with the first frame body, and the other one is connected with the first guide rail. The position of the swing device is fed back in real time through the displacement sensor, so that the swing device is guaranteed to perform welding operation all the time within the stroke range of the swing mechanism, and the limit protection of the swing mechanism is realized. An automatic welding machine is also provided.
Description
Technical Field
The utility model relates to the field of automatic welding, in particular to a swing mechanism and an automatic welding machine.
Background
Swing welding is often used in the field of automatic welding, and a welding head assembly is moved back and forth between two sides of a welding seam by using a swing mechanism so as to realize swing welding. According to the application scene of automatic welding, the swing mechanism and the swing stroke used have certain difference.
At present, a swing mechanism cannot acquire the real-time position of a swing device in the stroke of the swing mechanism, and the problem that the swing motor or the swing device is damaged because the swing device exceeds the limit position of the stroke of the swing mechanism frequently occurs in the using process. Limit switches or limit devices are additionally arranged at the limit positions of two sides of part of the swing mechanism, the problem that the swing mechanism exceeds the stroke is solved through an automatic welding control system, but the limit devices cannot be effectively installed on the swing mechanism with a compact and precise structure, or the increase of the limit devices can lead to the increase of the volume of the swing mechanism. Meanwhile, as the two sides of the swing mechanism are both required to be provided with the limiting devices, the complexity of the structure and the cable routing can be increased.
Therefore, it is desirable to design a swing mechanism that can avoid damage to the motor or the device caused by the swing device exceeding the mechanism stroke.
SUMMERY OF THE UTILITY MODEL
An object of the present invention is to provide a swing mechanism capable of real-time feedback of the position of a swing device in the course of the swing mechanism.
The swing mechanism includes: the swinging device comprises a first frame body and a first guide rail, wherein the first frame body can move along the first guide rail; the welding head assembly is arranged on the swinging device; and a displacement sensor including a fixed portion and a movable portion, one of the fixed portion and the movable portion being connected to the first frame body, and the other being connected to the first guide rail.
In one or more embodiments, the displacement sensor is a slide rheostat, the fixed portion is a rheostat rod body, and the movable portion is a slide sheet.
In one or more embodiments, the varistor rod body is fixedly connected to the first guide rail, the first frame body is provided with a through hole, and the sliding sheet is disposed in the through hole and moves synchronously with the first frame body.
In one or more embodiments, the varistor body is disposed on a side of the first rail.
In one or more embodiments, swing mechanism still includes drive assembly, drive assembly includes first motor, lead screw and gear train, the one end of lead screw is connected with the second support body, the second support body with first support body is connected, the lead screw with first motor sets up side by side, and passes through the gear train transmission is connected, the lead screw drive the second support body drives first support body activity.
In one or more embodiments, the swing mechanism has an accommodating space therein, and the driving assembly and the first guide rail are disposed in the accommodating space.
The position of the swing device is fed back in real time through the displacement sensor, so that the swing device is guaranteed to perform welding operation all the time within the stroke range of the swing mechanism, and the limit protection of the swing mechanism is realized.
It is another object of the present invention to provide an automatic welding machine that provides real-time feedback of the position of the oscillating device during the stroke of the oscillating mechanism.
The automatic welding machine comprises the swing mechanism, and the welding head assembly is driven to move in the first direction through the swing device.
In one or more embodiments, the welding head assembly further comprises an adjusting assembly, the adjusting assembly comprises a sliding part, a second guide rail and a second motor, the sliding part is fixedly connected with the welding head assembly, the sliding part is movable relative to the second guide rail, the second motor drives the sliding part to drive the welding head assembly to move in a second direction, and the second direction is perpendicular to the first direction.
In one or more embodiments, the rack further comprises a control system for controlling the start and stop of the movement of the first rack along the first guide rail according to the output signal of the displacement sensor.
According to the automatic welding machine, in the welding operation process, the position of the swing device is fed back in real time through the displacement sensor, the swing device is guaranteed to perform welding operation in the stroke range of the swing mechanism all the time, and the limit protection of the swing mechanism is achieved.
Drawings
The above and other features, properties and advantages of the present invention will become more apparent from the following description of the embodiments with reference to the accompanying drawings, in which:
FIG. 1 is a schematic diagram of an automated welding machine according to one embodiment.
Description of symbol mark
1 swing mechanism
2 displacement sensor
3 oscillating device
4 accommodation space
5 welding head assembly
6 adjusting component
7 second frame body
8 side wall surface
9 drive assembly
21 fixed part
22 movable part
31 first frame body
32 first guide rail
61 sliding part
62 second guide rail
63 second electric machine
71 indicating line
81 first extreme position
82 second limit position
91 first electric machine
92 screw rod
93 gear set
Detailed Description
The present invention is further described in the following description with reference to specific embodiments and the accompanying drawings, wherein the details are set forth in order to provide a thorough understanding of the present invention, but it is apparent that the present invention can be embodied in many other forms different from those described herein, and it will be readily appreciated by those skilled in the art that the present invention can be implemented in many different forms without departing from the spirit and scope of the utility model. It is noted that these and other figures which follow are merely exemplary and not drawn to scale and should not be considered as limiting the scope of the utility model as it is actually claimed.
As shown in fig. 1, an automatic welding machine includes a swing mechanism 1 and an adjusting assembly 6, wherein the swing mechanism 1 includes a swing device 3 and a welding head assembly 5. The adjusting assembly 6 is used for adjusting the position of the welding head assembly 5 in the vertical direction, the vertical direction is perpendicular to the horizontal plane needing welding operation, and the distance between the welding head assembly 5 and a workpiece to be welded is adjusted by adjusting the position of the welding head assembly 5 in the vertical direction; the swing device 3 is used for driving the welding head assembly 5 to do reciprocating motion on two sides of the welding line, so that swing welding is realized.
In the embodiment shown in fig. 1, the welding head assembly 5 is disposed on the adjusting assembly 6, and the adjusting assembly 6 is fixedly connected to the oscillating device 3, so as to achieve synchronous movement of the welding head assembly 5 and the oscillating device 3. In other embodiments, the welding head assembly 5 can also be arranged directly on the oscillating device 3.
In order to ensure that the swing device 3 cannot be damaged due to exceeding the stroke of the swing mechanism 1 in the welding process, the swing mechanism 1 comprises the swing device 3, a welding head assembly 5 and a displacement sensor 2. The oscillating device 3 includes a first frame 31, a second frame 7 and a first guide rail 32, the first guide rail 32 extends along a first direction, the first frame 31 is movable along the extending direction of the first guide rail 32, the first direction refers to the moving direction of the welding head assembly 5 during oscillating welding, and the second frame 7 is connected with the first frame 31 to realize synchronous movement of the first frame and the second frame. The displacement sensor 2 includes a fixed portion 21 and a movable portion 22, one of the fixed portion 21 and the movable portion 22 is connected to the first frame body 31 and moves synchronously with the first frame body 31 during the weaving welding process, and the other is connected to the first guide rail 32 and remains stationary during the weaving welding process.
In one embodiment shown in fig. 1, the displacement sensor 2 is a sliding rheostat, the fixed portion 21 is a rheostat rod and is fixedly connected to the first guide rail 32, the movable portion 22 is a sliding sheet and is fixedly connected to the first frame 31, specifically, the rheostat rod is disposed on a side surface of the first guide rail 32, a through hole is formed in the first frame 31, the sliding sheet is disposed in the through hole and is fixedly connected to the first frame 31, so as to achieve synchronous movement with the first frame 31, and the arrangement enables the structure of the swing mechanism 1 to be more compact without occupying additional space.
In other embodiments, the varistor rod may be disposed at other positions, for example, on the opposite side of the first rail 32 from the first frame 31, and the sliding piece and the first frame 31 may be connected in other manners to achieve synchronous movement of the two.
The displacement sensor 2 adopts a slide rheostat, a slide sheet and a rheostat rod body which have relative motion relations are combined with a first guide rail 32 of a first frame body 31 which also has relative motion relations, the structure is simple, voltage is given to two ends of the slide rheostat, in the swing welding process, as the slide sheet moves synchronously along with the first frame body 31, the voltage value output by the slide rheostat can change in real time, and the voltage value can be used for feeding back the real-time position of the first frame body 31 in the mechanism stroke in the subsequent steps, so that the swing device 3 is prevented from exceeding the mechanism stroke.
In other embodiments different from the one shown in the drawings, the varistor rod and the sliding piece may be arranged in other ways, for example, the sliding piece is arranged on the first guide rail 32 as the fixed portion 21, and the varistor rod is arranged on the first frame 31 as the movable portion 22, so that the varistor rod moves synchronously with the first frame 31 during the swing welding process and the sliding piece remains still, and the real-time position of the swing device 3 during the mechanism stroke can also be fed back by the voltage value output by the displacement sensor 2.
In one embodiment, the swing mechanism 1 further includes a driving assembly 9, the swing mechanism 1 has an accommodating space 4 therein, the accommodating space 4 is defined by the first frame body 3, the second frame body 7 and a side wall surface 8 of the swing mechanism 1, the side wall surface 8 is disposed opposite to the first frame body 3, and the driving assembly 9 is disposed in the accommodating space 4. The driving assembly 9 comprises a first motor 91, a screw rod 92 and a gear set 93, wherein the first motor 91 is used for driving the screw rod 92 to rotate, as shown in fig. 1, the first motor 91 and the screw rod 92 are arranged side by side and are in transmission connection through the gear set 93, so that the structure of the driving assembly 9 can be more compact. One end of the screw rod 92 is connected to the second frame 7, and drives the second frame 7 to move in the first direction, so as to drive the first frame 31 to move along the first guide rail 32.
In one embodiment, the mechanism travel of the pivoting mechanism 1 is marked by a graduation mark on the side wall 8 of the pivoting mechanism, and includes a first extreme position 81 and a second extreme position 82, which define the movable range of the pivoting device 3, beyond which damage to the motor or the device may occur, as well as the first extreme position 81 and the second extreme position 82. The second frame 7 has a corresponding indicator line 71, by means of which indicator line 71 the position of the swing means 3 in the travel of the mechanism is shown.
During the assembly process, the mechanical travel and the voltage value output by the displacement sensor 2 are calibrated: the swing device 3 slides between the first limit position 81 and the second limit position 82, the voltage values output by the displacement sensor 2 when the swing device 3 is at different positions are recorded, the relationship between the position of the swing device 3 and the voltage values is determined, and the quantification of the position of the swing device 3 is realized, so that the manual judgment and search of the position of the swing mechanism 3 when the equipment is in an initial state are omitted, and the position adjustment of the swing device 3 is facilitated.
At the same time, the voltage values output by the displacement sensor 2 when the swing device 3 is at the first limit position 81 and the second limit position 82 are recorded, respectively, and the output voltage value is recorded as the first limit value at the first limit position 81 and as the second limit value at the second limit position 82, as the reference value for the subsequent mechanism limit protection.
Automatic welding machine still includes control system, according to displacement sensor 2's output signal, outputs corresponding instruction, controls the start-stop of first support body 31 along the activity of first guide rail 32: when the voltage value output by the displacement sensor 2 is between the first limit value and the second limit value, the control system outputs a judgment instruction to the first motor 91, so that the welding operation can be carried out; when the voltage value output by the displacement sensor 2 is the first limit value or the second limit value, the control system outputs a judgment instruction to the first motor 91, and welding operation cannot be performed, so that damage caused by further operation of the swing device 3 is avoided, and limit protection is realized.
When the external operation is improper, the control system can also interrupt the corresponding output control of the first motor 91 according to the real-time position information of the swing device 3, so that the protection of the motor and the device is achieved.
In one embodiment, when the voltage value output from the displacement sensor 2 approaches the first limit value or the second limit value, the control system outputs a determination command to the first motor 91, and the welding operation is disabled. Taking the first limit value as an example, approaching the first limit value means that before the swing welding starts, the control system determines in advance whether the swing device 3 will exceed the first limit position 81 in the swing process according to the real-time position information of the swing device 3 in the mechanism stroke in combination with welding parameters such as the swing amplitude set by the welding operation, if the control system calculates and determines that the swing device 3 will exceed the limit position after the welding starts, the control system regards that the swing device is approaching the first limit value, gives an instruction through an operation program, does not allow the welding operation, and simultaneously can prompt a corresponding operator to adjust the welding parameters or adjust the external mechanical structure of the swing mechanism 1, thereby ensuring that the swing device 3 always performs the operation within the mechanism stroke range.
In one embodiment, to simplify the wiring of the swing mechanism 1, the dc operating voltage U of the displacement sensor 2 may be directly set, the value setting of the operating voltage U may be selected according to the signal processing requirement of the automatic welding control system, and the voltage value signal U1 output when the slide sheet is moved ranges from 0 to U. The voltage value signal U1 is used as the output voltage of the displacement sensor 2 and is connected to an analog input module of the control system, and the position of the varistor sliding sheet, that is, the position of the first frame body 31, can be calculated according to the working voltage U of the displacement sensor 2, the output voltage value signal U1 and the stroke of the swing mechanism, so that the real-time position of the swing device 3 in the swing mechanism 1 is reflected.
In another embodiment, the signal can be converted into standard 0-5V, 0-10V and the like through an external V/I conversion module.
In the embodiment shown in fig. 1, the adjusting assembly 6 includes a slider 61, a second guide rail 62 and a second motor 63, the slider 61 is fixedly connected to the welding head assembly 5, the slider 61 is movable relative to the second guide rail 62, the second motor 63 is configured to drive the slider 61 to move the welding head assembly 5 in a second direction, the second direction is perpendicular to the first direction, so as to position the welding head assembly 5 in the vertical direction before the swing welding starts.
The swing mechanism is designed according to the structural design of an automatic welding machine used in welding operation, the corresponding displacement sensor 2 is selected or designed, the position of the swing device 3 is fed back in real time through the displacement sensor 2, the swing device 3 is guaranteed to perform welding operation within the range of the swing mechanism stroke all the time, and the limit protection of the swing mechanism 1 is realized.
Although the present invention has been disclosed in terms of the preferred embodiment, it is not intended to limit the utility model, and variations and modifications may be made by one skilled in the art without departing from the spirit and scope of the utility model. Therefore, any modification, equivalent change and modification of the above embodiments according to the technical essence of the present invention are within the protection scope defined by the claims of the present invention, unless the technical essence of the present invention departs from the content of the present invention.
Claims (9)
1. Swing mechanism, its characterized in that includes:
the swinging device comprises a first frame body and a first guide rail, wherein the first frame body can move along the first guide rail;
the welding head assembly is arranged on the swinging device; and
and the displacement sensor comprises a fixed part and a movable part, one of the fixed part and the movable part is connected with the first frame body, and the other one is connected with the first guide rail.
2. The rocking mechanism of claim 1, wherein the displacement sensor is a sliding varistor, the fixed portion is a varistor rod, and the movable portion is a sliding piece.
3. The swing mechanism as claimed in claim 2, wherein the varistor rod is fixedly connected to the first rail, the first frame has a through hole, and the sliding piece is disposed in the through hole and moves synchronously with the first frame.
4. The swing mechanism as claimed in claim 3, wherein the varistor rod is disposed laterally of the first rail.
5. The swing mechanism as claimed in claim 1, further comprising a driving assembly including a first motor, a lead screw and a gear set, wherein one end of the lead screw is connected to a second frame body connected to the first frame body,
the lead screw with first motor sets up side by side to through the gear train transmission is connected, the lead screw drive the second support body drives first support body activity.
6. The swing mechanism according to claim 5, wherein the swing mechanism has a receiving space therein, and the driving assembly and the first guide rail are disposed in the receiving space.
7. Automatic welding machine, characterized in that it comprises an oscillating mechanism according to any one of claims 1 to 6, said welding head assembly being driven in motion in a first direction by said oscillating device.
8. The automatic welder according to claim 7, further comprising an adjustment assembly, wherein the adjustment assembly comprises a slider, a second guide rail, and a second motor, wherein the slider is fixedly connected to the welding head assembly, the slider is movable relative to the second guide rail, the second motor drives the slider to move the welding head assembly in a second direction, and the second direction is perpendicular to the first direction.
9. The automatic welder according to claim 7, further comprising a control system for controlling the start and stop of the movement of the first frame along the first guide rail based on the output signal of the displacement sensor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122662911.9U CN215967078U (en) | 2021-11-02 | 2021-11-02 | Swing mechanism and automatic welding machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122662911.9U CN215967078U (en) | 2021-11-02 | 2021-11-02 | Swing mechanism and automatic welding machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215967078U true CN215967078U (en) | 2022-03-08 |
Family
ID=80511661
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122662911.9U Active CN215967078U (en) | 2021-11-02 | 2021-11-02 | Swing mechanism and automatic welding machine |
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| Country | Link |
|---|---|
| CN (1) | CN215967078U (en) |
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2021
- 2021-11-02 CN CN202122662911.9U patent/CN215967078U/en active Active
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